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Naval Postgraduate School
by Nazimek, Jeanne Marie
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This thesis focuses on the leadership, both internal and external, of the Palestinian people in the occupied territories of Israel, in an effort to determine if any internal political groups exist that are capable of challenging the authority of the Palestinian Liberation Organization (PLO). Background information includes the rise of Palestinian nationalism and the history of politics in the West Bank and Gaza Strip since the 1967 War. The primary factor influencing the current leadership...
Topics: Intifada, Uprising, Yasir Arafat, Hamas, Islamic Jihad, Unified National Leadership of the Uprising
Naval Postgraduate School
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In response to recent significant improvements in soviet Submarine Technologies the Navy developed the Weapon System Improvement Program for the S- 3A Viking. This program is an example of the dynamic nature of the environment within which the program manager operates. It provides the program manager with little control over certain events and the effects they have on their programs. An effective program manager will realize these limitations exist and attempt to strategically and flexibly...
Topics: Weapons systems, Cost, Management., S-3 weapon systems improvement program, S-3B
Naval Postgraduate School
by Gildersleeve, Cory Ward
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An interdisciplinary analysis of the post-Cold War world to determine the optimal strategy to attain the national interests of the United States, and the requisite logistic structure to support that strategy. The optimal solution is found to be a strategy based on multinational defense centered on a permanent force of United Nations garrison port complexes. This multilateral force would be augmented by as small a national defense force as necessary to ensure national security. The thesis...
Topics: FMS, Logistics, Logistics., Management, Multinational Defense, National Interests, National...
Discontent with global relations is causing policy pressures which are reminiscent of pressures which existed when isolationism dominated American foreign policy. Among these pressures are; fear of abandonment or exploitation, preoccupation with domestic well-being and attendant dissociation from global relations, and advocacy of trade barriers to check foreign competition. This paper discusses isolationism's influence during three periods in American history--pre-World War I (1914-1916),...
Topics: International relations, Isolationism, Twentieth century, U.S. Foreign Policy, U.S. History -...
Naval Postgraduate School
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Computer wargame simulations have typically provided military officers with an effective method of testing their knowledge of tactics and strategy. However, large simulations typically use a command language dialogue interfacing the uses with the wargame. This type of interface requires a great deal of typing skill and memorization of the language syntax and allowing little time for decision making and battle analysis. RESA is a typical theater level naval wargame which utilizes this type of...
Topics: War games., RESA, graphic user interfaces, computer wargame simulations, BATMAN and ROBIN,...
Naval Postgraduate School
by Hu, Ta-Hsiang.
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Several different hardware structures for Fast Fourier Transform (FFT) are discussed in this thesis. VHDL was used in providing a simulation. Various costs and performance comparisons of different FFT structures are revealed. The FFT system leads to a design of Discrete Cosine Transform (DCT). VHDL allows the hierarchical description of a system in structural and behavioral description. In the structural description, a component is described in terms of an interconnection of more primitive...
Topics: Signal processing, Algorithms., FFT System, DCT System Implementation
This thesis describes the testing of a prototype of a satellite computer communications controller, based on the 80C86 microprocessor, which is to be placed on the Petite Amateur Navy Satellite (PANSAT) for launch in 1993 on a two year mission. First, the background of the justification for PANSAT is described. PANSAT will serve primarily as an inexpensive store-and-forward orbiting mailbox, and secondarily it will serve as a teaching and learning vehicle for NPS faculty and students. then...
Topics: Satellites, Computer systems, Testing., Satellite Communications, Satellite Microprocessors
Naval Postgraduate School
by Swanson, Joel T.; Gibson, John H.
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This thesis is a primer for a combat modeling course for Joint Command, Control, and Communications (C3) students at the Naval Postgraduate School. It provides the students with a single document which ties together the concepts of several modeling experts pertinent to C3. The thesis examines various aspects of combat models and introduces some of their functions, applications, and results. Areas included in the primer are: combat theory and definitions for command and control reflected in that...
Topics: Combat,Simulation methods, Communications, Military, Command and control systems, War games.,...
This thesis examines design criteria related to development of local and wide area networks for command, control, and communications (C3) systems, especially as such networks could be used by the Navy of the Republic of China, Taiwan. This study stresses the usefulness of modern computer networks and the importance of considering human factors and artificial intelligence systems during design of these networks. Various network technologies and communication methodologies used for local area...
Topics: Computer networks, Artificial intelligence, Local area networks (Computer networks), Command,...
Naval Postgraduate School
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Recognition of the importance of legislative liaison in the military departments is critical in an era of declining defense dollars. This thesis documents the organization, functions, and operation of the legislative liaison offices of the three military departments and provides evidence regarding congressional perceptions of these offices. The legislative liaison offices of the military departments are examined and compared using an organizational model based on legislative liaison in other...
Topics: Management, Legislation, Public administration., Congressional Liaison, SAFLL, Army OCLL, Navy OLA,...
Naval Postgraduate School
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This study investigates the effects of different charge density rise times upon the magnitude of the Cerenkov radiation produced by a semi-infinite electron beam. The magnetic field pulses were generated for different rise times and relationships between the maximum magnitudes and their associated rise times were obtained. These were compared with theoretical relationships derived from a power series approximation. The generated results were close to those predicted by theory for short rise...
Topics: Cherenkov radiation, Cerenkov Radiation, Semi-Infinite Path, Rise Time Effects
This thesis develops a multiple regression model using regional and unit characteristics to estimate commuting distances of U.S. Army Reservists. The data were obtained from a 1988 file established by the Defense Manpower Data Center containing locational and biodemographic information on 238,174 enlisted reservists. A random sample of 91 reserve centers was selected for the analysis. The logistic and normal distributions were evaluated as possible candidates for fitting the commuting distance...
Topics: Commuting, Statistics., Euclidean distance, power transformation, maximum likelihood estimators,...
Naval Postgraduate School
by Lambrakakis, Georgios D.
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This thesis investigates a new mm-wave Bilateral Slot Line (BSL) antenna and its relation to the Linearly Tapered Slot Antenna (LTSA). The BSL antenna consists of a tapered double-sided slotline and can be viewed as two identical LTSAs sandwiched back to back. Dielectric substrates with permittivities of 2.33 and 6.0 were used to construct these antennas. The theoretical background, the design, and the performance in the frequency range 5-9 GHz of the new microwave integrated circuit antenna is...
Topics: Antenna arrays, Integrated circuits., Thesis, word processing, Script, GML, text processing
Naval Postgraduate School
by Claes, Dennis C.
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A two layer ocean mixed layer model is used to study the relationship between onset of freezing and mixed layer depth, wind forcing, surface buoyancy flux, and temperature and salinity changes between the two layers. Universal non- dimensional parameters for stability and surface forcing are derived and related to the maximum freezing rate. Analytic solutions to the model are found in terms of the universal parameters and the model turbulent mixing tuning constants. Sensitivity studies show the...
Topics: Dynamics, Temperature., Oceanography, sea ice, mixed layer modeling, freezing
We compare and contrast results of three different models of acoustic propagation in an ocean with a sloping bottom, predicting the pressure field in a wedge-shaped ocean with a pressure release surface and an acoustically fast bottom. On image and two PE (Parabolic Equation) models were selected. The computer model for the image method was written in Basic for use on a PC and in Fortran for use on the NPS IBM 3033 computer main frame. The geometric shape of the wedge for the image calculation...
Topics: Sound pressure, Sound, Transmission, Underwater acoustics, Ocean bottom., Image Method, Parabolic...
Naval Postgraduate School
by Turner, Penny B.
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The current nationwide nursing shortage has intensified the focus on retention in the Navy Nurse Corps. This thesis examines some of the influences on a Navy nurse's decision to stay in or leave the service. The sample was selected from the 1987 Occupational Task Inventory of the Navy Medical Department, conducted by the Navy Occupational Development Analysis Center. The sample was restricted to nurses in the grades O 1 through O 4, who were stationed at naval hospitals at the time of the...
Topics: Nursing, Scarcity, Multivariate analysis., Nurse, Nursing Shortage, Retention, Multivariate...
Naval Postgraduate School
by Barnes, Christopher A.
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This thesis presents a simple and efficient method of implementing a semantic type checking system for use with relational databases. Numeric data typically represent measures of a specific property or characteristic of a real world object. Computers manipulate only the numeric value. It is the responsibility of the user to ensure that the data are handled in a manner consistent with its meaning. If the semantics associated with the numbers are stored in a data dictionary, semantic consistency...
Topics: Systems engineering, Semantics, Databases, Database design, data manipulation, semantic networks
Naval Postgraduate School
by Cloutier, Michael John.
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The Naval Postgraduate School (NPS) is currently involved in a long-term project to investigate and develop real-time control software, artificial intelligence, computer architecture and control systems theory as they pertain to U.S. Navy autonomous vehicle programs. In support of this goal, the NPS is currently designing and fabricating a testbed autonomous underwater vehicle. This work describes the design, development, and testing of a Guidance Subsystem for this testbed vehicle which uses...
Topics: Vehicles, Remotely piloted, Remote submersibles., Autonomous vehicle, Autonomous Underwater...
Two aspects of digital communication were investigated. In the first part, a FFT-based, M-ary FSK receiver in a Rician-fading channel was analyzed to determine the benefits of non-uniform windowing of sampled received data. When a frequency offset occurs, non-uniform windowing provided better FFT magnitude separation. The improved dynamic range was balanced against a loss in detectability due to signal attenuation. With large frequency offset, the improved magnitude separation outweighed the...
Topics: Command and control systems, Digital communications, Computer network protocols., FFT windowing,...
This thesis analyzes deliberate attack missions conducted at the U.S. Army National Training Center and checks for relationships between ground force synchronization at the mission critical point and a measure of effectiveness. This analysis should facilitate the development of similar, or more in-depth, studies of combined arms operations in desert warfare. Procedures are developed to quantify the core offensive doctrinal concepts addressed in U.S. Army Field Manual 100-5: Operations. The...
Topics: Speed, Tactics., Mass, Velocity, Momentum, Mission Critical Point, Strong Point, Defensive Belt,...
Naval Postgraduate School
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The path of the California undercurrent off Monterey in May 1989 was studied using hydrographic data. Water mass analysis compared poleward flowing Undercurrent water with the southward flowing water of the California Current. Isopycnal surfaces and dynamics heights are compared with velocity, water mass properties and bathymetry. The California Undercurrent was observed to flow poleward off Monterey along the continental slope. Water properties that were almost strongly associated with water...
Topics: Ocean currents, California, Monterey Bay.
Naval Postgraduate School
by McIntyre, Eddie L.
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An evaluation of the shielded stripline was conducted using an X-band waveguide to isolate a suspended strip transmission line. The analysis was conducted below the functional cutoff frequency of the X-band guide over a broad range of frequencies. The scattering coefficients were measured and used to compute the gap capacitances of the transmission line. The gap discontinuities were then used to confirm the theoretical assumed piequivalent circuit.
Topics: Strip transmission lines, Systems engineering, Electronics in military engineering., Suspended...
This thesis research focused on the identification and characterization of the barriers which impede institutionalization of Total Quality Management (TQM) concepts in the Department of Defense (DoD) acquisition system. Barriers were identified and characterized by survey of public and private sector individuals knowledgeable about TQM and experienced in the DoD acquisition system. The quality philosophy described by DR. W. Edwards Deming was the primary foundation for analysis. Although many...
Topics: DoD Acquisition System, Management., Total quality management, barriers
Naval Postgraduate School
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This thesis describes a CAD-compatible circuit model for an infinitesimally thin inductive strip centered in homogeneous finline for 0.1 less than or equal to w over b less than or equal to 1.0. The model is shown to predict scattering data which agrees with data computed using the spectral domain method. Results were generated for strips of length T greater than or equal to 10 mils in X-band. By applying the scaling principle, the model is valid for any waveguide band over the normal frequency...
Topics: Electrical engineering., Finline, Discontinuity, Inductive, Strip
Naval Postgraduate School
by Hunninghake, David Patrick; Ashley, Bradley Keith
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The United States Air Force's Headquarters Tactical Air Command (TAC) Communications-Computers staff provides guidance to TAC functional users on the procurement and use of Local Area Networks (LANs) in a deployed environment. Deployable systems may be defined as those systems designed to be transported away from their normal base for semi-fixed or mobile tactical missions. Major deployed LAN concerns include issues related to transmission media, protocols, topology, and...
Topics: Local area networks (Computer networks), Computer systems., Local Area Networks
Communication problems exist for English as a second language (ESL) personnel in Recruit Training Commands and Navy work places. Good English language programs could improve the communication problems in the training environment and in the work place by providing language instruction right after enlistment. In this study, the adequacy of the existing ESL training programs in the Navy and other ESL training programs currently used in the military is determined. The ESL training programs offered...
Topics: ESL training in the Army, ESL training programs in civilian industry, English language training...
Naval Postgraduate School
by Yang, Y.H.
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The term LOFAR is defined as 'search technique using omnidirectional sonobuoys'. It is an acronym for Low Frequency Analysis and Recording. When the signal to noise ratio is low, the detection of a track in a lofargram by computer is difficult. Actually, operators often face this kind of problem when detecting an acoustic signature in the noisy sea environment. Furthermore, operators must keep on tracking lofargram to identify a given target. This problem could be handled by the automation of...
Topic: Relaxation method applied to lofargram
Naval Postgraduate School
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This thesis examines the Space Shuttle's purpose of low-cost, routine access to space and how the lessons learned during the Space Shuttle program have affected the thinking on new heavy-fit launch systems. The thesis objective is to show the Space Shuttle was an attempt at developing a routine, low-cost access to space but, because of Shuttle-unique capabilities, cost-effective operations may never be realized with the Shuttle system. The Space Shuttle concept definition is addressed and the...
Topics: Budget, Cost., Space Shuttle, Costs, Shuttle-C, Advanced Launch System
This thesis postulates deep dielectric charging of exterior spacecraft dielectrics as a mechanism responsible for the sunlit charging even observed on the ISEE1 spacecraft. Deep dielectric charging can cause a negative potential to develop on the insulating surfaces of the spacecraft, resulting in the information of a potential barrier capable of suppressing photo and secondary emission. These events can lead to overall negative charging of the spacecraft. Calculations were made using in situ...
Topics: Physics, Orbits, Space vehicles, Satellites, Dielectric, Spacecraft Charging, ISEE1, Potential...
A synthetic aperture acoustic array is used to as a spatial filter in a reverberant test facility. The array is used to examine the c' rge in the received signal when a fluid loaded steel plate is replaced by the free surface. Twenty millisecond active pulses at 2 kHz were scattered by the target plate and recorded by the synthetic aperture array for post processing. 'I ie method of reverberant field subtraction was utilized and found unsatisfactory for use with signals of 20 msec duration in a...
Naval Postgraduate School
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Efficient manpower utilization is essential to minimizing the cost, and a key element in that is the maintenance of the optimum balance between civilian and military manpower resources. Economic efficiency dictates that as the cost of military personnel begin to rise relative to the cost of direct hires, the Services would have an incentive to increase the use of direct hires, and vice versa. In our empirical analysis, results indicate that although DoD responded correctly to factor price...
Topics: Civilianization, DoD civilian employees, military essentiality, cost factors, human resource factors
The objective of this work is to outline rules for the implementation of Electronic Warfare Reprogramming Libraries (EWRL) in the Brazilian Air Force (FAB). First, a brief description of the structure and functions of the relevant branches of Brazilian Air Force will be presented. Second, why having a reprogramming process for airborne RADAR WARNING RECEIVERS (RWR) THREAT LIBRARIES is important at the current stage of EW development within the Brazilian Air Force. Third, based on the U.S....
Topics: Electronics in military engineering, Computer programming, Threats., Radar warming receivers, user...
Naval Postgraduate School
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A material that behaves likes a glassy ablator on the surface, has a low thermal conductivity, is structurally tough, lightweight, and is in some sense reusable, would be desirable for the protective heat shield used on Earth entry vehicles. A material for this purpose has been developed that uses silicon dioxide (fused quartz) in a fibrous packed matrix, forming blocks which can behave as a glassy ablator on the surface when subject to very high surface heat fluxes. These fibrous silicon...
Topics: Space vehicles, Atmospheric entry, Mars (Planet), Ablative materials, Shielding (Heat), Ablative,...
A triquadratic isoparametric solid element is developed to study the behavior of thick isotropic and laminated composite plates. The element is a 27 noded Lagrangian element based on three dimensional elasticity. Material characteristics are accounted by either using laminate plate theory or three-dimensional anisotropic theory. Element matrices for nonlinear stability analyses are derived based on total Lagrangian formulation. Results are presented to compare with analytical solutions to...
Topics: Finite element method, Composite materials, Finite element, nonlinear analysis, plate bending thick...
The dissertation discusses High Frequency (HF) radio sources. It consolidates data from all available, published HF spectrum surveys. The author conducted a new HF survey using detection of new energy events. The first cumulative probability distribution function for the amplitude of detected non-broadcast HF signals is developed, and the distribution is log-normal. HF receiver site performance quantification is possible using the HF signal distributions. Site performance degradation results...
Topics: A/D, Analog-to-digital converter, Dynamic range, Electromagnetic compatibility, HF receiver, HF...
Naval Postgraduate School
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The main emphasis of this thesis is the examination of technology transfer from a theoretical perspective and comparison of this perspective with its application in the Republic of Indonesia. The elements of a transfer mechanism concept such as organization, project, documentation, distribution, linker, capacity, credibility,willingness and rewards are being used for the examination. The role of The Body of The Assessment and Application of Technology (BPPT) as the linker between the source of...
Topic: Technology transfer application
Research entails derivation of statistical description of output from an MFSK receiver which uses self-normalization of the output from quadratic detectors. The system uses fast frequency hopping to provide diversity and assumes independent channels for each hop when the signal is recombined. The effects of fading channels are investigated for both Rayleigh and Rician fading channel descriptions. Probability of bit error for the uncoded performance is plotted for various signal-to-noise ratios...
Topics: Receivers, Errors, Detectors., MESK, self-normalization receiver, Reed-Solomon coding,...
Naval Postgraduate School
by Josefson, Carl Elof
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Ferroelectric materials have wide application in area such as piezoelectric transducers, pyroelectric detectors, and electro-optics, and now thin-film ferroelectric materials are being integrated with conventional semiconductor processes to produce memory devices. Memories based on this technology potentially offer nonvolatile data storage and extended read-write endurance in comparison with EEPROMs, without speed or power penalties. These memories are also radiation hard. Considerable interest...
Topics: Ferroelectricity, Piezoelectric devices., Ferrorelectric, nonvolatile memory, radiation hard
Loss measurements were conducted using a five-hole conical pneumatic probe in a subsonic wind tunnel containing a modeled cascade of controlled diffusion (CD) stator blades. Following reference measurements at high incidence one blade was modified (slotted at the leading edge) in an attempt to (passively) reduce the size of the leading edge separation bubble and thereby improve performance. Prior to the surveys, the acquisition and reduction software was modified to provide loss calculations...
Topics: Cascade Wind Tunnel Loss Measurement, Controlled DIffusion Blading, Slotting Leading Edge
Investigations of scattered transient waveforms from conducting bodies have shown that it is possible to classify electromagnetic scatterers. The concept is based upon the natural resonance modes which are part of the scatterer response to an incident excitation. A new approach for describing natural resonance modes using recursive systems is introduced. A discrete auto- regressive moving-average (ARMA) type model for the case of the space-time wave equation is presented. This model results...
Topics: Sonar, Radar., Natural resonances, electromagnetic scattering, acoustic scattering, radar target...
Naval Postgraduate School
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Considerations of real-time control problems for an Autonomous Underwater Vehicle (AUV) are addressed in this research. Among these problems is the ability to control the submersible given its highly nonlinear operation environment. In order to account for these variations, robust control techniques must be used. In particular, Variable Structure Control (VSC) with Doyle-Stein Observer has proven to produce optimal results while maintaining a high degree of robustness. This led to the...
Topic: Submersibles.
Naval Postgraduate School
by Charbonneau, Lauren J.
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In this thesis a formal description technique, systems of communicating machines, is used to specify and analyze a token bus protocol. A simplified description of the protocol is given, and proofs of certain correctness properties presented. The analysis proves that the protocol is free from deadlocks and non executable transitions, and also that successful message transfer is guaranteed for a network with an arbitrary number of machines. A program written in an object oriented language, C++,...
Topics: Computer network protocols,Standards,United States, Local area networks (Computer networks), Token...
Naval Postgraduate School
by Chou, Chih-Lun
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The analysis of LAN performance is the main objective of this research. LANs can be configured in various ways combining different medium access control mechanisms and different physical layer specifications. Details on these alternatives are specified in IEEE 802.3 through IEEE 802.5. We study th performance of different types of LANs under various configurations of servers and stations. The queueing network model is one of the analytical tools to help investigate the performance...
Topics: Local area networks (Computer networks),Computer simulation., Local Area Network, LAN, performance...
Naval Postgraduate School
by Zagourakis, Emmanouil N.
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The purpose of this study is to determine whether or not a program could be developed to examine isomorphism between parts of a VLSI layout. Many simulation files, obtained through Magic's hierarchical extractor, were analyzed in order to develop a C program to accomplish recognition in several types of gates. This recognition gives signatures in order to check for isomorphism. The development and design of the algorithms used in different parts of the program are described. Results demonstrate...
Topics: Algorithms, Electrical engineering., VLSI circuit verification, gate recognition, isomorphism...
Naval Postgraduate School
by Hawkins, Michael L.
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This thesis presents several derivations of Snell's Law of Refraction and one of the principle of reflection. In all of these, we place different constraints upon the problem and produce the familiar laws governing reflection and refraction. The main result of this research is the expression found for Snell's Law of Refraction in which the velocity of the light particles in the medium depends upon direction. We also use inverse problems to find the index of refraction needed to move along any...
Topics: Refraction., Snell's Law, Refraction, Reflection, Fermat's Principle
Naval Postgraduate School
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A half-scale Unmanned Aerial Vehicle (UAV) was designed and constructed from composite materials for the Flight Research Lab at the Naval Postgraduate School. The vehicle was designed as a technology demonstrator for two studies. First, the Tilted Ducted Fan (TDF) vertical flight capability engine and its stability and control systems, and second, for the tail configuration testing for longitudinal and lateral-directional stability enhancement of an existing tailless Unmanned Aerial Vehicle....
Topics: Uninhabited combat aerial vehicles, Construction, Drone aircraft, Airplanes, Military, Equipment.,...
Naval Postgraduate School
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It was suggested by Munk and Forbes (1989) that climate induced changes in ocean temperature may be monitored by measurements of cross-basin acoustic travel time variability. The feasibility of such a monitoring system depends on the spatial and temporal variability of the cross-basin acoustic paths in the presence of ocean variability of many different scales. For this thesis the variations in arrival position, azimuthal arrival angle, ray trajectory and the corresponding changes in travel...
Topics: Oceanography, Temperature measurements., Hamiltonian raytracing, greenhouse warning, Cross-Basin...
Naval Postgraduate School
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The purpose of this thesis was to analyze the effect of ASVAB waivers on A-School academic attrition. This was accomplished by developing a Statistical Analysis System (SAS) computer program, using extracts of the Enlisted Training Tracking File (TRAINTRACK) and the Navy Enlisted Classification Tracking File (NECTRACK). A review of literature was also undertaken to provide a summary of available information on factors that influence attrition, aptitude testing and ASVAB validity, trends in...
Topics: Databases, Computer programs, Ability,Testing, Armed Services Vocational Aptitude Battery,...
Naval Postgraduate School
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A classical control system with a full-order observer is designed to stabilize the motions of towed vessels. The control method is transverse movement of the towline attachment point on the towed vessel. The linearized sway and yaw equations of motion are developed, leading to the control system design. The control system is tested using MATRIX. Results for a barge, mariner-class ship and a tanker are presented. Possible benefits of the implementation of such a system include improved fuel...
Topics: Marine engineering, Tankers, Warships., Towing, control, stability, automatic control system
Differential scanning calorimetry (DSC) was conducted using a monolithic 6061 aluminum material and two 6061 aluminum matrix composite materials. The composite materials were reinforced with 10 volume percent and 15 volume percent alumina particles. Electrical resistivity and hardness measurements during isothermal aging treatments were also conducted. The effects of prior aging and alumina particle additions on the growth kinetics and the thermal stability of the metastable phases in each...
Topics: Aluminum, Composite materials, Aluminum matrix composites
Naval Postgraduate School
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This investigation of the Combat Air Patrol stationing problem analyzes the geometry of a hypothetical tactical scenario. Expressions to determine the following quantities are derived: (1) the minimum early warning radar detection range required for intercept feasibility; (2) intercept range as measured from the target area position when the interception begins from the CAP station; and (3) the minimum number of interceptors required to actively maintain one CAP station. The time variables most...
Topics: Air warfare, Management, War games, Mathematical models, Differential equations., Combat Air...
Naval Postgraduate School
by Smith, Jane Reno; Webb, Julie Elizabeth
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With the ever changing environment of Navy stock points, the Navy Supply Systems Command saw the need to design and develop a course in Stock Point Operations for mid-grade managers. This thesis is a part of that effort. The focus of the thesis research was the design and development of eight hours of course material on work-load planning to be included as a finishing section of the 40-hour Stock Point Operations course. Included in this thesis are a history of the need for the course...
Topics: Inventory control, Management, Warehouses, Management., Work-load planning, Navy stock points, TQM,...
Naval Postgraduate School
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This thesis addresses the design of an interactive satellite communications system analysis program. The program provides the capability to analyzedesign a system comprised of two earth terminals and one or two geosynchronous satellites. The principal goal is to simplify the analysisdesign process via a graphically-oriented, menu-driven computer program. The program leads the user methodically through the process and provides feedback that enables the user to visualize the elements of the...
Topics: Hypertext systems., Communications Link Analysis, Geosynchronous Satellite, Orbital Parameters
Naval Postgraduate School
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This thesis examines the possible effects of foreign acquisition on the defense industrial base in the semiconductor industry. The problems and benefits of foreign acquisition are assessed in order to determine the consequence of foreign acquisition for industries critical to U.S. national security. Foreign investment in these critical areas has the attention of top officials in the legislative and executive branch, as evidenced by the passage of the Exon-Florio amendment. This legislation was...
Topics: National security, Economics., Foreign investment, industrial base
This thesis proposes reorganizing the Software Base Management System of the Computer Aided Prototyping System (CAPS) to take better advantage of object-oriented database technology, domain analysis and rule based systems. A method for using the Prototyping System Description Language (PSDL) augmented with domain dependent keywords to classify reusable Ada components and organize them in an object-oriented database is presented. A rule based structure needed to implement this software base is...
Topics: Computer science, Modeling., Rapid Prototyping, Models, Programming Languages, Domain Analysis,...
Various Naval Field Activities are granted procurement authority from the Naval Supply Systems Command (NAVSUP) or Naval Regional Contracting Centers (NRCC). The granting activities (NAVSUP) or NRCC) are required to do periodic reviews of these activities in order to ensure that the rules, regulations and proper procedures are being followed. During these Procurement Management Reviews (PMR) many of the same discrepancies continue to appear. These thesis analyzes 50 PMRs conducted by NRCC, San...
Topics: Variations., Small Purchase, Procurement Management Reviews
Naval Postgraduate School
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This study examines the ARB decision and reporting process of the seven A Schools and the Advanced Electronics School from the Service School Command in San Diego, Ca. Three research questions are addressed: (1) Do differences exist between the schools' ARB procedures which could promote either inaccurate or decreased standardization in attrition reporting?; (2) How much agreement is there among the ARB members concerning the evaluation of student factors for a given type decision?; (3) What...
Topics: "A" school, "C" school, Attrition reporting, Naval education,United States.,...
Naval Postgraduate School
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Late identification of work and inadequate administrative controls are principle causes of untimely preparation of Controlled Work Procedures (CWPs) at one heavily loaded, afloat, submarine Intermediate Maintenance Activity (IMA). Untimely CWP preparation, however, is symptomatic of a more widespread problem of inadequate communications and decision support in the IMA maintenance planning process. The Maintenance Resource Management System's (MRMS) Engineered Time Value standards provide...
Topics: Ships,Maintenance and repair, Planning., Ship repair, ship maintenance, submarine repair,...
Naval Postgraduate School
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Fault trees and Petri nets are two widely accepted graphical tools used in the safety analysis of software. Because some software is life and property critical, thorough analysis techniques are essential. Independently Petri nets and fault trees serve limited evaluation purposes. This thesis presents a technique that converts and links Petri nets to fault trees and fault trees to Petri nets. It enjoys the combinational benefits of both analysis tools. Software Fault Tree Analysis and timed...
Topics: Computer science, Software engineering, Graphic methods., Software Safety, Petri Net, Fault Tree,...
Naval Postgraduate School
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This is the fifth thesis of the Space Thermoacoustic Refrigerator (STAR) project which will be launched aboard the Space Shuttle in 1991 to demonstrate the potential of this technology for cooling satellite electronics and sensors. It describes the design, construction, and testing of the resonator portion of the refrigerator along with its integration with the existing driver and control electronics which were the subject of four previous theses. This resonator incorporates a helium diffusion...
Topics: Satellites, Helium., Space thermoacoustic refrigerator, NASA G-337 (Payload number, heat engine,...
This research studies making an intelligent tutoring system in order to reduce pilot mistakes during inflight emergency, specifically the flight environment within an F-4 aircraft fuel system malfunction. The pilot emergency tutoring system consists of an expert system with knowledge of the F=4 aircraft fuel system and a tutoring system with strategy to teach students. The expert and tutoring systems use a means-ends analysis problem approach, The means-ends analysis approach reduces...
Topics: Artificial intelligence, Flight training., Intelligent tutoring systems, Means-end analysis,...
Legislators, recognizing the need to increase the national savings rate, have introduced profit-sharing and thrift savings plans to civilians, but have not included the military. This thesis examines the need for and the costs and benefits of an employer-sponsored savings plan for active duty military personnel. It concludes that it is both feasible and cost-effective to tailor tax-sheltered annuities (TSA's) currently available to nonprofit organizations to the military compensation system. It...
Topics: Compensation, Economics, Pay, Pensions., Retention, Retirement, Savings, Soldiers
This thesis examines alternatives for increasing the supply of Military Family Housing (MFH) at NPS Monterey, California. Military construction, the traditional program, is compared with five other means by which the inventory of MFH units should be increased. Costs for each of the options are analyzed using accepted DoD cost models. Conclusions and recommendations regarding the most viable alternative for increasing the supply of MFH are provided in the final chapter. Analytic cost...
Topics: Cost., Housing, Military Family
The modeling of picosecond pulse propagation on microwave integrated circuit interconnections is considered. Autoregressive moving-average (ARMA) and autoregressive (AR) parametric models are derived for lossy dispersive microstrip transmission lines and cascaded microstrip step discontinuities. We formulated mathematical expressions to relate the model parameters to the physical microstrip properties. New lumped-distributed equivalent circuit interconnections is modeled using...
Topics: Integrated circuits, Dissertations, Academic, Strip transmission lines, Parameter estimation,...
The primary objective of this thesis is to propose a template for a National Space Warfighting Architecture (NSWA). The template is intended to fill the void that exists between national security space policies and the services' space warfighting plans. As such, it will provide a unifying framework for follow-on discussions and debate about the proper direction of space-based operational and tactical combat support. In support of this objective, this thesis aims to: provide the proper focus for...
Topics: Space warfare, Architecture, Space surveillance, Naval battles, Missions., Space Warfare,...
Naval Postgraduate School
by Fountoulakis, Radamanthis P.
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A study was conducted in an area off the Hellenic west coast to examine the spatial and time variability of various oceanic parameters, with special emphasis on those effecting ASW operations. Propagation loss runs were conducted using PE and RAYMODE models. The reactions of both models to different bottom morphology and sound speed profiles (seasons) were examined. Between the two models, the PE model was found to be closer to reality than RAYMODE. Results suggest that the application of these...
Topics: Acoustic imaging, Underwater acoustics, Oceanography, Research., Oceanographic, acoustic survey,...
Thermomechanical processing was conducted on a cast aluminum-based metal matrix composite. The material studied was 6061 aluminum containing 10 volume percent of alumina (Al2O3) particles, fabricated by casting and subsequently extruded by DURALCAN, Inc. Processing included isothermal rolling of an extruded bar to large strain values. As a result of rolling at 500 C, strength was increased, but with a substantial loss of ductility. Further strengthening was realized by rolling at 350 C and no...
Topics: Composite materials., Cast metal matrix composites, processing, particulate
Naval Postgraduate School
by Dixon, Roger Steven
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The Short Range Air Defense (SHORAD) Defense Planner, or SDP, is a prototype defense planning and simulation tool. It is designed to aid and train Army Air Defense Officers in the tasks of: (1) planning the air defense for a given static asset; and (2) positioning short range air defense weapon systems in the best possible way. A prototype system has been constructed which allows the Air Defender to position his asset to defend, with the system then performing a heuristic search, and displaying...
Topics: Antiaircraft guns, Antiaircraft missiles., Graphics workstation, air defense artillery, simulation,...
An extensive Ocean Prediction Through Observation, Modeling, and Analysis (OPTOMA) domain, off Northern and Central California, was surveyed in November 1986, during OPTOMA 23. Surface dynamic height (SDH), sea surface temperature (SST), and other fields were mapped with a Gandin objective analysis (OA) model; stream function nowcasts and hindcasts of the mesoscale oceanic field were generated by a quasigeostrophic (QG) model, initialized and updated with OA fields of dynamic topography. The...
Topics: Mesoscale Ocean Models, Fall Transition, AVHRR, Data Requirements, California Current System,...
Naval Postgraduate School
by Cornwall, Maxwell W.
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This thesis describes a simple-to-use, multi-echelon, single-item, simulation model written in SLAM II. The model simulates the operation of Recoverable Items (RIs) at one or more bases and the flow of supporting RIs through a multi-echelon maintenance system. The model can be configured by the user to simulate a system consisting of one to three maintenance echelons with one to six bases. Lateral resupply is also an option. The model uses an (s-1,s) inventory policy. The model calculates...
Topics: Inventory control, Mathematical models, Computer simulation, SLAM (Computer program language),...
Naval Postgraduate School
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This theses explores training weaknesses and requirements of civilian (GS-1105 series) mid-level personnel in the Naval Supply Systems Command (NAVSUP) small purchase arena. The purpose of the study is to identify the training inadequacies and to recommend alternative methods and forums to evaluate and correct training shortcomings. The theses analyzes informal training plans and training methods of the Naval Supply Centers. In addition, formal small purchase mid-level GS-1105 training is...
Topics: Dissertations, Academic, Training., Small Purchase, Training
Naval Postgraduate School
by Sawyer, Darren Antwon
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The most widely used mechanism for access control to information systems is passwords. Passwords can be machine-generated using a list of words stored in a memory bank, machine-generated using a sophisticated algorithm to create a pseudo-random combination of characters or they can be user-generated. User-generated passwords typically take on the characteristics of some type of meaningful detail that is simple in structure and easy to remember. Memorability and security pose a difficult...
Topics: Data protection, Computer security., Passwords, computer security, user-generated passwords,...
Naval Postgraduate School
by Nye, Holly Lawrence
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A new design for non-self integrating magnetic-loop sensors (B-dots) has been developed at Los Alamos National Laboratory. Experiments and tests were performed using the Relativistic Electron Beam Experiment (REX) machine to compare the B-dot sensors to optical beam diagnostics (streak camera). the B- dots were assessed to have the capability of measuring the REX electron beam's position to within 0.25mm with 2 percent error, and its transverse oscillatory movement to within 0.5mm amplitude...
Topics: Physics., B-dot sensors, non-self integrating inductive loop sensors, REX
This thesis explores the effect of frequency of performance on the Congressionally mandated Job Performance Measurement, specifically the Marine Corps' portion of the study. The initial portion of the project involved the hands-on performance testing of the infantry specialities. The purpose of this thesis is to validate the use of the general technical (GT) composite of the ASVAB test as a predictor of performance in the infantry specialty and to provide recommendations to revise training...
Topics: Military education., Readiness, aptitude, task performance, frequency, recency
This thesis is an application of survival analysis methods to study first term enlisted attrition from the Marine Corps. The data comprise over 99 percent of all enlisted accessions into the Marine Corps between 1 October 1983, and 31 August 1988. A large percentage of the observations are censored, thus motivating the use of survival analysis techniques. The enlistees are categorized by three covariates: education credential, Armed Forces Mental Group and presencenon-presence of a moral...
Topics: Military attrition, Survival analysis, Log-linear regression
Naval Postgraduate School
by Spaulding, Brian C.
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The satellite image navigation system for AVHRR (Advanced Very High Resolution Radiometer) imagery at the Naval Postgraduate School, referred to as Avian, has been modified from an operator interactive procedure to an automatic navigation procedure. The interactive procedure, based on operator identification of discrete landmarks, has been replaced with a procedure which utilizes the Defense Mapping Agency's (DMA) World Vector Shoreline (WVS) as a reference. Binary shoreline images are created...
Topics: Oceanography, Satellites, Navigation., Image navigation, binary correlation, automatic landmarking
Naval Postgraduate School
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The dynamic stall of rapidly pitching and oscillating airfoils is investigated by the numerical solution of the full compressible unsteady two- dimensional Navier-Stokes equations using an alternating-direction-implicit scheme. The flow is assumed to be fully turbulent, and the turbulent stresses are modelled by the Baldwin-Lomax eddy viscosity model. Three airfoils (NACA 0012, NACA 0012-33, and NACA 0012-63) are analyzed for the purpose of examining the influence of leading-edge geometry on...
Topics: Aerofoils, Leading edges (Aerodynamics), Oscillating wings (Aerodynamics), Dynamic stall,...
Naval Postgraduate School
by Saunders, Thomas E.
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Performance tests of the longitudinal and lateral propulsion devices for use on the Naval Postgraduate School (NPS) Autonomous Underwater Vehicle (AUV) II are presented. The propulsion requirements for the AUV are discussed and a brief review of the theoretical performance of propulsors is presented. The test procedures used to determine the operating range characteristics of the candidate propulsion devices are described and the results are compared with those obtained theoretically as well as...
Topics: Submersibles., Autonomous Underwater Vehicle, AUV, Unmanned Untethered Underwater Vehicle, UUV,...
Naval Postgraduate School
by The'berge, Marc W.
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The Naval Postgraduate School must, by default, make use of teaching cases in information technology case studies oriented or based upon corporations. It has been difficult for the school to obtain such studies oriented to the military, much less the United States Navy. This thesis provides the Naval Postgraduate School with three teaching cases concerning automated information systems serving the administrative and operational needs of unit- level command organizations.
Topics: Sea control, Teaching, Aids and devices, Aircraft accidents., Case Studies, Database Management...
A high resolution, 20-level, primitive equation (PE) model of the California coastal region is initialized using temperature data acquired during the first California Transition Zone (CTZ) cruise from 6 to 12 July 1988 for the purpose of diagnosing the three-dimensional dynamically balanced flow field for the region. The major feature in the region during the cruise period was a strong meandering jet which flowed equatorward and offshore, oriented in a northeast to southwest direction. The...
Topics: Ocean currents., Diagnostic model, California Current, CTZ, dynamical modes
Naval Postgraduate School
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The U.S. Coast Guard operates several Vessel Traffic Services (VTS) in major U.S. shipping ports. These systems were designed and implemented twenty years ago. They were designed for a single mission, port safety. The surveillance and display systems are well beyond the planned service life and need to be replaced. This thesis investigates and summarizes up-to-date methods of providing surveillance services to a VTS. The author includes a history of VTIS, an analysis of the assigned missions,...
Topics: vessel traffic service, radar surveillance, harbor surveillance, RDSS, radar scan conversion, data...
An experimental technique for observing Optical Transition Radiation, (OTR), that is both simple and effective, is shown. A Macintosh II computer equipped with an image frame grabber board and Image software package allows for extensive analysis of the captured electron beam spot OTR patterns. The equipment is capable of measuring relative intensities to better than 1% for a constant source image. With beam energies of nearly 100 MeV the captured OTR images show an unexpected assymetry in the...
Topics: Transition radiation, diffraction pattern, Lorentz factor, electron bean current, integrated...
Naval Postgraduate School
by Thornton, Paul D.
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Currently, to plan chemical weapons' use on the battlefield, planners use the classified chemical weapon effects tables contained in FM 3-10B and look up the expected casualties based on the meteorological and target conditions. This can be a lengthy and time-consuming process especially when many weapons are available andor many targets are under consideration. Mathematical models could significantly improve both the speed and accuracy of the current procedure and thus allow chemical weapons...
Topics: Mathematical models, Chemical warfare., Chemical Casualties, Chemical Warfare, Regression, CHEMCAS
The effects of curvature and the resulting centrifugal instabilities on local heat transfer distributions are studied in a curved channel at Dean numbers ranging from 50 to 200. The channel has a rectangular cross section of 1.27 cm by 50.1 cm giving an aspect ratio of 40 to 1. Flow is heated in a straight portion of the channel prior to the curved portion in order to obtain flow which is hydrodynamically and thermally fully developed. All baseline tests confirm techniques employed and qualify...
Topics: Curved Heating Channel, Heat Transfer Coefficients, Nusselt Numbers, Dean Vortices, Centrifugal...
This thesis evaluates the Acquisition Plans of two US Army Command, Control and Communications (C3) systems: Mobile Subscriber Equipment (MSE) and the Single Channel Ground and Airborne Radio System (SINCGARS), both of which are components of the Army Tactical Command and Control System (ATCCS). The study examines the defense acquisition process through the comparison of the Acquisition Plans and lessons learned for these two programs, and determines if there is an optimal strategy for the Army...
Topics: Radio, Tactics, Communications, Military., Acquisition plans, Command, Control and Communications...
Naval Postgraduate School
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Numerous methods exist to calculate near-fields from two-dimensional objects, however, relatively long computation times are generally required for reasonable accuracy. Computation is slowed primarily due to the calculation of near-fields using a singular kernel. The proposed work will develop an alternate, more efficient algorithm for calculating the near-fields from surface distributions. The Singularity Extraction Technique (SET) analytically extracts the contribution due to the...
Topics: Electrical engineering, Near-fields., Electromagnetic scattering, near-fields
Naval Postgraduate School
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This thesis examines the relationship between the benefits and the major objections expressed over burden sharing and international armaments cooperation. These concerns include: (1) protectionism, (2) transfer of technology and (3) bureaucratic problems. An analysis of these factors will be conducted through a case study of the Fighter Support Experimental (FSX) project. It will be conducted so as to determine the validity of these benefits and objections. The objective of this thesis is to...
Topics: International cooperation, Weapons systems., FSX, fighter support experimental, burden sharing,...
The primary purpose of this thesis is to explore and discuss the hardware design of a bus-oriented microprocessor system. A bus-oriented microprocessor system permits it to be expanded to a multi-processor system. Through the use of a bus controller and bus arbiter, as discussed in this thesis, the necessary logic is in place to control bus access by system users. Bus access may be initiated to share another sub-system's resource, such as memory. To accommodate memory sharing between two...
Topics: Dissertations, Academic., MC68010 Microprocessor, VMEbus, Virtual-Memory, Dual-port Memory,...
The increasing complexity of our every day jobs requires us to pursue flexible and more adaptive technologies with which to respond to our professional requirements. One such method is an expert system. This computer software "tool" is one means to augment and streamline ones professional decision making process. The expert system can be utilized as a means to assist new or inexperienced personnel to make informed decisions about their jobs. It can also assist in the decision making...
Topics: Management, Cybernetics, Artificial intelligence., Expert Systems, Acquisition, Procurement...
Naval Postgraduate School
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This document reports the results of research into the application of artificial neural networks to controlling dynamic systems. The network used is a feed-forward, fully-connected, 3-layer perception. Two methods of training neural networks via error back-propagation were used. Pattern matching training is a direct method that teaches the basic response. Performance index training is a new technique that refines the response. Performance index training is based on the concept of enforced...
Topics: Space vehicles., Neural Networks, Attitude Stabilization, Pattern Matching Training, Time-Optimal...
Naval Postgraduate School
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This thesis discusses the basic flight training in the Indonesian Air Force Undergraduate Pilot Training (IAF-UPT) and the primary training in the United States Navy Undergraduate Pilot Training (USN-UPT) which uses the same type of aircraft, the T-34C 'Turbo Mentor.' The investigation into the IAF-UPT and the USN-UPT shows the differences in training methods and objectives. Further analysis is presented of three aspects of flight training: the training effectiveness of military flight...
Topics: Military education., Basic Flight Training, Innovation, Curriculum Recommendation, Undergraduate...
Naval Postgraduate School
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This thesis compares the efficiency of a constraint branch-and-bound method against the conventional variable branch-and-bound method in solving set partitioning problems. Because of the difficulties encountered in writing the constraint branch-and-bound subroutine, it was necessary to solve each subproblem encountered from scratch. This is in contrast to the variable branching code which, when solving closely related subproblems, essentially starts from an advanced starting solution. Even...
Topics: Operations research, Problem solving., Set partitioning problem, constraint branch and bound...
This thesis calculates and compares the marginal cost of graduating a naval officer from the United States Naval Academy (USNA), Naval Reserve Officers Training Corps (NROTC), and Officer Candidate School (OCS). After defining the variable and fixed cost functions for each commissioning source, the total cost, average cost, and marginal cost per graduate are calculated for fiscal year 1989 graduates. Compared to average cost, the marginal cost per Academy graduate is more in line with the...
Topics: Calculates and compares the marginal cost of graduating a Naval officer from the United States...
The purpose of this thesis is to examine how implementation of Total Quality Management (TQM) and the development of a process improvement model, within a Forward Support Battalion (FSB), cn improve preparation of the Material Condition Status Report (DA Form 2406). It attempts to establish the framework Forward Support Battalions can implement in order to develop a process improvement model and identifies some ways to monitor the progress the improvement model is making with the preparation of...
Topics: Management, Quality control, Total quality management., Process imporvement model, implementation...
This thesis describes the need for including design for testability in a VLSI chip design and provides information on implementing a DFT strategy using the GENESIL Silicon compiler. Two structured techniques of design for testability, Scan Design and Built-in Self Test, are discussed. Also, the methodology used to implement the residue code with GENESIL for testing the multiply-add module of a second-order Infinite Impulse Response notch filter is presented. The cost, in terms of increased...
Topics: Computer-aided design, Integrated circuits., Design for testability, Scan design, Built-in...
Naval Postgraduate School
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The focus of this thesis is to identify the prerequisite knowledge required by the Navy financial manager in the budget formulation and execution process for civilian personnel and payroll management. Research at the field activity level has provided practical policies and procedures that have been combined with existing financial management directives, manuals, and instructions to produce a management guide for incorporation in the Practical Comptrollership Course (PCC) offered by the Naval...
Topics: Wages,Accounting., Comptroller, payroll management, civilian pay
Naval Postgraduate School
by Bolchoz, John Manning
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In these days of spiralling software costs and the proliferation of computers, software testing during development is now recognized as a critical aspect of the software engineering process, an aspect that must be improved in terms of cost and timeliness. This thesis describes one method that may guide software testing by analyzing the regions of input associated with each fault as it is detected. These software failure regions are defined and a method of failure region analysis is described in...
Topics: Computer programming, Computer software., Software testing, Code analysis, data selection, software...
Naval Postgraduate School
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Currently the problem with relational DBMSs is a lack of user friendly interface. Relational query languages such as SQL and QUEL are not ideal languages for end users. The forms approach is considered the most natural interface between end-user and database. Several systems based on the forms concept have been designed and implemented. This thesis studies the effectiveness of a form-based visual interface. To evaluate the development process of the form-based applications, this thesis includes...
Topics: Computer science, Databases., Formed-based interface, DBMS, Form Designer, pushbutton
The objective of this thesis is to examine a possible contingency measure of purchasing available ships on the international market to augment existing sealift capabilities prior to or during a crisis situation. This study explores the already existing procurement process that the Military Sealift Command and the Maritime Administration utilize to acquire ships for the Ready Reserve Force. An in-depth set of data was gathered of past sales on the worldwide market from 1977 through 1989. The...
Topics: Accelerated life testing, Marketing, International trade., Sealift, used ship market
Naval Postgraduate School
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This thesis analyzes the changing strategic environment in East Asia and the Pacific. Despite sweeping foreign policy initiatives, the Soviets maintain a significant military capability. Even as the likelihood of the Soviet threat diminishes, low-intensity type conflict threaten U.S. regional interests. Additionally, changing regional perceptions are undermining traditional U.S. security arrangements. Rising Asian nationalism questions the need for forward deployment of U.S. forces within...
Topics: Naval strategy., U.S. Navy, Maritime Strategy, National Strategy, Asia, Pacific, Soviet Union,...